Le Stag you know there is an easy fix for this issue currently being said by everyone right ?
Just have Ashley come over, let MC and her have fun and not let Laura see what happend.
When asked by Laura about what happened between MC and Ashley, people who opted to be with Oliver and Laura in the bedroom (and couldn't be) can have their petty revenge by saying no to Laura.
By creating a small conflict you can remind that Laura and MC are doing this exploration together and must respect each other and this conflict gives the game a more realistic approach.
Could even have Ashley be a help in making Laura understand this situation. In confident path Laura could just say sorry and move on, in cuck path you could have her say she was lost in the moment and promise to not let this happen again. Just an idea.